Ireland’s Foreign Minister today admitted his government faces a tough task getting the EU’s Lisbon Treaty ratified next month.The Irish people are voting on the charter again, having rejected it last year. Michael Martin’s warning comes the day after his ruling Fianna Fail party launched its campaign for a “Yes” vote. Yesterday, he was reassuring voters about concessions obtained from Brussels. Mr Martin said: “We intend to inform the public of the new guarantees that address the main concerns that were articulated last year at the referendum campaign back then, and that, since, these concerns have been comprehensively addressed as the European powers have listened and delivered,” Martin said on Thursday. While the “Yes” camp is still ahead, a new survey in the “Irish Times” shows support for the treaty has fallen, with an incease in the number of undecided voters. Analysts have warned the government’s deep unpopularity could trigger a protest vote. Another “No” would derail the reform treaty, possibly for good, as it must be ratified by all 27 EU member nations.